version 2
Source: IERS Bulletin A (   0_   0_ )

Orbits: to be used with the IGS Prediction Service Orbits (IGP)

  MJD      Xpole   Ypole  UT1-UTC    LOD  Xsig  Ysig   UTsig  LODsig  Nr Nf Nt
             (10**-6")       (0.1 usec)    (10**-6")    (0.1 usec)  
51727.50  109782  277979  2041672    -14  2125  2134    1546       0   0  0  0
51728.50  109381  276878  2041308    743  4650  4650    4024       0   0  0  0
51729.50  108924  275852  2040058   1756  5407  5407    5946       0   0  0  0